There is a better reason to use $0 then leaving the
filesystem littered with lock files. I pointed out to Nitrox
that in Unix, it is possible to delete a locked file, and
that he should use the process table or semaphores instead. He wanted
to know if there was a way around this, and I replied with this
is an attempt at security through obscurity.
What Dominus is doing is beautiful. By locking $0, it can't be deleted -
or rather it can be, but then there wouldn't be a program to run Dominus++.
Cheers - L~R